From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Byteflux <byte@byteflux.net>
Date: Tue, 1 Mar 2016 14:14:15 -0600
Subject: [PATCH] Drop falling block and tnt entities at the specified height

Co-authored-by: Jake Potrebic <jake.m.potrebic@gmail.com>

diff --git a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
index a4e8fa5267b8853603e4683bf9d002db7465e4b6..c3a16691e8a843c02e0aea6469822cd8869ad593 100644
--- a/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
+++ b/src/main/java/net/minecraft/world/entity/item/FallingBlockEntity.java
@@ -149,6 +149,16 @@ public class FallingBlockEntity extends Entity {
             ++this.time;
             this.applyGravity();
             this.move(MoverType.SELF, this.getDeltaMovement());
+            // Paper start - Configurable falling blocks height nerf
+            if (this.level().paperConfig().fixes.fallingBlockHeightNerf.test(v -> this.getY() > v)) {
+                if (this.dropItem && this.level().getGameRules().getBoolean(GameRules.RULE_DOENTITYDROPS)) {
+                    this.spawnAtLocation(block);
+                }
+
+                this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+                return;
+            }
+            // Paper end - Configurable falling blocks height nerf
             this.handlePortal();
             if (!this.level().isClientSide && (this.isAlive() || this.forceTickAfterTeleportToDuplicate)) {
                 BlockPos blockposition = this.blockPosition();
diff --git a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
index 8f693bb45099124bca62849528c81d717131a48c..15432b512fc0d0d38bf28499e2afa5e48fec7aaa 100644
--- a/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
+++ b/src/main/java/net/minecraft/world/entity/item/PrimedTnt.java
@@ -99,6 +99,12 @@ public class PrimedTnt extends Entity implements TraceableEntity {
         this.handlePortal();
         this.applyGravity();
         this.move(MoverType.SELF, this.getDeltaMovement());
+        // Paper start - Configurable TNT height nerf
+        if (this.level().paperConfig().fixes.tntEntityHeightNerf.test(v -> this.getY() > v)) {
+            this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+            return;
+        }
+        // Paper end - Configurable TNT height nerf
         this.setDeltaMovement(this.getDeltaMovement().scale(0.98D));
         if (this.onGround()) {
             this.setDeltaMovement(this.getDeltaMovement().multiply(0.7D, -0.5D, 0.7D));
diff --git a/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java b/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
index c112c4b103c34e05f4de973eec94a969f60b085e..b7036f8399e2500ba01736c6006b972f7ca4838e 100644
--- a/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
+++ b/src/main/java/net/minecraft/world/entity/vehicle/MinecartTNT.java
@@ -54,6 +54,12 @@ public class MinecartTNT extends AbstractMinecart {
     public void tick() {
         super.tick();
         if (this.fuse > 0) {
+            // Paper start - Configurable TNT height nerf
+            if (this.level().paperConfig().fixes.tntEntityHeightNerf.test(v -> this.getY() > v)) {
+                this.discard(EntityRemoveEvent.Cause.OUT_OF_WORLD);
+                return;
+            }
+            // Paper end - Configurable TNT height nerf
             --this.fuse;
             this.level().addParticle(ParticleTypes.SMOKE, this.getX(), this.getY() + 0.5D, this.getZ(), 0.0D, 0.0D, 0.0D);
         } else if (this.fuse == 0) {